200 FOUNDATIONS OF BOTANY 
of a pistil or a group of (usually two) stamens, springing 
from the axil of a small bract. 
Staminate and pistillate flowers may be borne on differ- 
ent plants, as they are in the willow, or they may be 
borne on the same plant, as in the hickory and the hazel, 
among trees, or in the castor-oil plant, Indian corn, and 
the begonias. When staminate and pistillate flowers are 
borne on separate plants, such a plant is said to be 
dicecious, that is, of two households; when both kinds of 
flower appear on the same individual, the plant is said 
to be monecious, that is, of one household. 
212. Study of Imperfect Flowers. — Examine, draw, and describe 
the imperfect flowers of some of the following dicecious plants and 
one of the moncecious plants: } 
( early meadow rue. 
TRAC ATA 50 ie es os TS 4 willow. 
| poplar. 
( walnut, oak, chestnut. 
Moneecious plants . ..... .- 4 hickory, alder, beech. 
| birch, hazel, begonia. 
213. Union of Similar Parts of the Perianth. — The 
sepals may appear to join or cohere to form a calyx which 
is more or less entirely united into one piece, as in Figs. 
139 and 148. In this case the calyx is said to be gamo- 
sepalous, that is, of wedded sepals. In the same way the 
corolla is frequently gamopetalous, as in Figs. 144-148. 
Frequently the border or limb of the calyx or corolla is 
more or less cut or lobed. In this case the projecting 
1¥or figures or descriptions of these or allied flowers consult Gray’s 
Manual of Botany, Emerson’s Trees and Shrubs of Massachusetts, Newhall’s 
Trees of the Northern United States, or Le Maout and Decaisne’s Traité 
Général de Botanique. 
